Changes in maternal physiology during pregnancy include a rise in

A. True About 300 g nitrogen is retained, half by maternal tissues and half by fetal tis-sues.

B. False Blood pressure tends to fall, such a rise suggests disease.

C. False It tends to fall due to increased ventilation.

D. False Tone decreases and may lead to ureteric reflux and urinary infections.

E. False It falls, and glucose may appear in urine at normal blood glucose levels.